CN101365652B - Activated carbon and canister using the same - Google Patents
Activated carbon and canister using the same Download PDFInfo
- Publication number
- CN101365652B CN101365652B CN2007800019595A CN200780001959A CN101365652B CN 101365652 B CN101365652 B CN 101365652B CN 2007800019595 A CN2007800019595 A CN 2007800019595A CN 200780001959 A CN200780001959 A CN 200780001959A CN 101365652 B CN101365652 B CN 101365652B
- Authority
- CN
- China
- Prior art keywords
- gac
- butane
- hay tank
- desorb
- absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7022—Aliphatic hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
- Carbon And Carbon Compounds (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
Disclosed is an activated carbon having a residual amount of butane of 1.2 g/100 ml or less as measured by BWC evaluation method in accordance with ASTM D-5228 after butane is adsorbed and the butane is then detached. Also disclosed is a canister using the activated carbon as an adsorbent material. The activated carbon and the canister can reduce the residual amount of a hydrocarbon (HC).
Description
Technical field
The present invention relates to a kind of gac, it is all very excellent aspect adsorptivity reconciliation absorption of organic gas.The invention still further relates to a kind of hay tank, it uses this gac all very excellent aspect the adsorptivity reconciliation absorption of organic gas as sorbent material.
Background technology
Because high volatile volatile, when vehicle went in strong sunshine or parks, as the gasoline evaporation of automobile fuel, and the petrol fumes that produces was released in the atmosphere.In refueling process, also produce petrol fumes.
For preventing that petrol fumes is discharged into outside the vehicle, for vehicle provides hay tank, in hay tank, as the charcoal absorption petrol fumes of sorbent material.For example, can adsorb and during the hay tank of desorb fuel vapours, prevented when car combustion engine is equipped with from the discharging of the fuel vapours of vehicle fuel tank evaporation.In this hay tank, the fuel vapours that vehicle back out of service produces temporarily is adsorbed.In addition, the steam of fuel composition that is adsorbed and new absorption is together by desorb, in servicely in oil engine, burns in next time.
This sorbent material in the hay tank also is used for adsorbing the petrol fumes that refueling process produces.Because the running of mover, the desorb (purgings) from the gac of the petrol fumes of absorption is admitted in the mover with inhaled air from the outside through suction pipe, and burns therein.
Simultaneously, because the absorption repeatedly and the desorb of organic gas (steam, for example gasoline), the absorption property that is used as the gac of fuel sorbent material descends gradually.If the amount of the steam that when producing steam, in fuel container, produces has surpassed the absorption property of gac, then steam is discharged into outside the vehicle, thereby produces off-odour.
Before this, the gac in the hay tank uses under the situation without any processing, perhaps for example makes this gac have polarity to improve absorption property.
In general, make gac in the following manner: with its raw material carbonization, activation then.Gac has the hole of adsorption gasoline steam.Activation is these holes of exploitation and the step of controlling the aperture.The gac that requirement is used for hay tank has the hole of big (20 to 50 dust) of opening diameter, with absorption and desorb petrol fumes.Through carrying out advanced activation, or under than the more harsh condition of the condition of the activation treatment that is used for common form, carry out chemical activation, produced the said wide-aperture hole that has.
As stated, the desirable sorbent material that is used for hay tank is following sorbent material: it adsorbs organic gas, gasoline for example, and after certain adsorption time this gas of desorb, thereby can realize big adsorptive capacity and desorption quantity.This is because this sorbent material can keep its performance and non-variation after using repeatedly.
Although be adsorbed in the hay tank petrol fumes on the gac with air (suction air) by desorb (purging); But the petrol fumes that still has part to be adsorbed is retained on the gac; And when vehicle is parked along with temperature rises, residual petrol fumes desorb from the gac, and being discharged into outside the car.
Especially, if having the conventional gac of wide pore size distribution, the hole that the boring ratio that then has a little opening diameter has big opening diameter has higher adsorptive power, thereby adsorbate is difficult to desorb (purging).Therefore, a large amount of adsorbates keep being adsorbed in the hole with little opening diameter, cause petrol fumes to rise along with temperature and leak.Therefore, when vehicle was parked, the amount that discharges (discharging) hydrocarbon (discharge that spills) in the atmosphere increased, and this is an individual problem always.
In open (Kokai) 2004-256335A of Japanese Patent, find that residue keeps being adsorbed on gac (as sorbent material) and has in the hole of little opening diameter.The document points out that the manufacturing process of active carbon that will have the hole plug of little opening diameter can effectively reduce the residual quantity of petrol fumes, thereby has reduced the leakage of this petrol fumes, and the discharge that spills that has also effectively suppressed petrol fumes gets in the atmosphere.Particularly, organic cpds is adsorbed onto on the gac in hole, thereby optionally stops up hole with small dia with pore size distribution range broad.
In addition, when steam gets in the hole of gac in the hay tank, because Intermolecular Forces, i.e. Van der Waals force, steam has formed first adsorption layer on the surface in the hole.And one after the other, because the skin effect of capillary condensation, the liquid level that is formed by steam is adsorbed on said first adsorption layer.When mover purged, the adsorbate in the upper strata formed desorb.
But when mover purged, because being connected between adsorbate and the gac is stronger, the adsorbate in first adsorption layer was difficult for desorb.Especially, having high boiling adsorbate composition ratio has lower boiling adsorbate composition and more is difficult for desorb.Therefore, having high boiling composition is tending towards remaining in the hole.That is to say when being adsorbed composition, to have the desorb from the hole of lower boiling composition, after having lower boiling composition desorb, be adsorbed in the hole that like this, the amount with high boiling composition increases gradually and have high boiling composition from the first adsorption layer desorb.As a result, gac generation deterioration.In addition, have high boiling composition and have big molecular weight, thereby occupied the most of volume in each hole.Therefore, the volume in each hole reduces, and absorption property further reduces.
When using the conventional porous adsorbent of being processed by gac etc., it is that hydrophobic absorption or hydrophilic absorption take place that the base material of this sorbent material or surface functional group have influenced.In addition, the ideal sorbent material can be to realize the big adsorptive capacity and the sorbent material of desorption quantity after the desorb then at the absorption certain hour.In this case, undoubtedly, the surface-area of sorbent material, pore distribution etc. affect adsorptive capacity and desorption quantity widely.The hydrophobicity of sorbent material and wetting ability possibly be favourable or adverse factors.When adsorptive capacity with respect to adsorbate hour, or when adsorptive capacity with respect to adsorbate big and desorption quantity hour, the hydrophobicity of sorbent material and wetting ability affect adsorbs and the condition of desorb.
When the hydrophobicity of considering aforementioned sorbent material and wetting ability, according to the hydrophobicity and the wetting ability selected adsorbent of the adsorbate of paying close attention to.When sorbent material was used for absorption and desorb repeatedly, what need was at the sorbent material of realizing big desorption quantity (residual quantity of adsorbate is little after desorb) after the absorption.When adsorbate and adsorbent surface had identical character, adsorptive capacity increased and desorption quantity reduces.
For example, be used for the situation of hay tank, when the hydrocarbon composition is adsorbed on the gac or from gac during desorb, the pore distribution that causes adsorptive capacity to increase makes the absorption confining force increase, thereby has reduced desorption quantity for gac.Like this, in the absorption of back, adsorptive capacity significantly reduces.In addition, the pore distribution that causes desorption quantity to increase makes the absorption confining force reduce.Like this, adsorptive capacity significantly reduces, and perhaps the hardness of gac is owing to advanced person's processing that wherein the aperture change is big reduces.Above-mentioned phenomenon is problematic always.
Brief summary of the invention
Consider above-mentioned situation, the purpose of this invention is to provide gac that can reduce hydrocarbon (HC) residual quantity and the hay tank that uses this gac.
Contriver of the present invention finds to have hydrophobicity and oleophobic property through the surface that makes gac, makes the surface condition of gac not influence absorption and the desorb in the hole of gac, then be adsorbed on the gac and from the gac the amount of the hydrocarbon of desorb increase.Accomplished the present invention thus.
Particularly, in first aspect, the present invention relates to based on the residual quantity of butane and the gac that defines.When making butane be adsorbed on the gac according to BWC (ASTM D-5228) method of testing or from gac during desorb, the residual quantity of butane is 1.2g/100ml or littler, more preferably 1.0g/100ml or littler.Here, butane is the representative example of volatile hydrocarbon, and is the indication of whole type of volatile hydrocarbon.
If more specifically limit gac of the present invention, then preferably, according to BWC (ASTMD-5228) method of testing, its normal butane working capacity (BWC) is 14g/100ml or higher.
In second aspect, handle gac of the present invention with fluoridizing solution and/or fluorinated gas.Gac through handling like this meets the requirement about above-mentioned butane residual quantity and normal butane working capacity (BWC).
The hydrophobic oleophobic composition is administered on the hole wall of gac, makes gac reduce the affinity of relevant adsorbate.Like this, adsorbate just is adsorbed on this gac with finite concentration or greater concn rather than with lower concentration.Particularly, when this gac was used for hay tank, hydrocarbon (HC) was adsorbed with high density, and because oleophobic effects, a large amount of hydrocarbon (HC) with lower concentration by desorb.Like this, can obtain to have the gac of low adsorbate residual quantity, hydrocarbon (HC) absorption simultaneously and desorption performance are maintained, and this is the desired performance of gac that the present invention is used for hay tank.
In the third aspect, the present invention relates to use the hay tank of aforementioned gac as sorbent material.Structure to this hay tank does not have special demands; But preferably use gac of the present invention as sorbent material in the part near atmospheric air port of this hay tank at least.In addition, preferably, the present invention includes hay tank with multilayered structure.
Compare with conventional gac, the hydrocarbon in the gac of the present invention (HC) residual quantity can reduce.Therefore, use hay tank absorption and the desorb a large amount of hydrocarbon (HC) of gac of the present invention, and wearing quality is excellent as sorbent material.
The accompanying drawing summary
Fig. 1 has shown the butane adsorption isothermal line of confirming according to the relation between butane concentration and the equilibrium adsorption capacity.
Fig. 2 has shown the hygroscopic nature of confirming according to the relation between relative humidity and the equilibrium adsorption capacity.
Embodiment
The example that can be used for the gac among the present invention comprises the activation products of using various types of raw materials (for example coal, Exocarpium cocois (Cocos nucifera L), timber, xylogen etc.) to obtain, and through steam activation or use phosphoric acid, zinc chloride, basic metal etc. to carry out the activation products that chemical activation obtains.Wherein the activation products of passing through the phosphoric acid activation acquisition based on timber are preferred.Consider the formability and the intensity of pressed active carbon, the granularity of the gac of this powder type is generally 0.5mm or lower, is preferably 0.05 to 0.15mm.That is, its granularity is preferably 200 orders through (60% to 95%).In addition; Its granularity is preferably 100 orders and passes through (50% or lower) through (60% or higher) to 325 orders; More preferably through (40% or lower), more preferably 100 orders pass through (20% to 40%) through (80% to 90%) to 325 orders to 100 orders through (80% or higher) to 325 orders.In addition, the specific surface area that is applicable to gac of the present invention is generally 500 to 2500m
2/ g, preferred 1000 to 2000m
2/ g, more preferably 1500 to 2000m
2/ g.If specific surface area is too little, just is difficult to obtain enough adsorptivities, and on the other hand,, then is difficult to obtain enough intensity if specific surface area is too big.
Gac of the present invention is through carrying out hydrophobic to above-mentioned gac as raw material or oleophobic is handled and to be obtained.When carrying out hydrophobic treatment, preferably, handle gac with various types of reagent (for example SULPHOSUCCINIC ACID ESTER).When carrying out the oleophobic processing, preferably, handle gac with fluorated solvent and/or fluorinated gas.
Gac of the present invention can be like compacted under: metal-powder, boron cpd and/or the phosphorus compound of powdered active carbon, clay, solid heat storage material are mediated, and added softening agent where necessary, for example water forms obtained product, and cures this product.Mediate and to proceed to following degree usually:, can be shaped mediating product with hand using mixing machine (for example kneader) after room temperature makes that with the raw material kneading mediating product has plasticity.The water that is used to mediate can will be mediated the amount adding that product is shaped by available hand.Usually add 50 to 200 weight parts, the more preferably water of 100 to 150 weight parts to 100 weight part gacs.Use suitable forming machine then, for example press will be mediated product and extrude and be shaped to desired shape, and will be for example cylindrical or spherical, thereby can obtain the gac of granulation.Preferably, via making the granulation gac through the granulation of extruding, the granulation gac that uses suitable crusher to obtain so as required is broken, then to its screening.Can obtain the granulation gac of its granularity fragmentation within the required range like this.400 ℃ to 1000 ℃, preferred 500 ℃ to 900 ℃ temperature, in oxygen-free atmosphere, granulation gac that obtains like this or broken granulation gac are cured then.Then at 700 ℃ to 1200 ℃, preferred 900 ℃ to 1000 ℃ temperature with its steam activation or chemical activation.The pressed active carbon that can obtain to be correlated with thus.In addition, before curing, preferably be used for the device that drum changes, for example the rotary drum tstr rouses commentaries on classics to the granulation gac and handles, thereby makes the smooth surface of granulation gac, increases bulk density.Drum change to handle generally about 30 to 300rpm, preferably carried out 10 minutes to 10 hours 50 to 100rpm, preferably carried out 30 minutes to 3 hours.Before or after curing, if desired, can wash or drying treatment.Can wash, only if it influences the absorption property of gac.Washing was used deionized water, tap water etc. tens of approximately seconds to several hours usually, preferably carried out about 10 minutes to 1 hour, and heating as required.The condition that is used to heat is 30 ℃ to 100 ℃.Can make the boiling of gac experience.Be used for the exsiccant temperature condition and be generally about 50 ℃ to 200 ℃, be preferably about 100 ℃ to 150 ℃, carried out about 30 minutes to 50 hours, preferred about 1 to 10 hour.
The pressed active carbon that obtains in the present invention has 1kg or higher, preferred 1 to 15kg shatter strength.Its typical shatter strength can suppose that it is that 2.5mm, length are that the shape of 4mm is measured that pressed active carbon has diameter.Pressed active carbon of the present invention is preferred in the hay tank of vehicle.In this case, its shatter strength is preferably 3kg or higher.If shatter strength is too low, then when being filled into hay tank or being used for hay tank, the gac efflorescence causes anti-air permeability (pressure-losses) to increase.In the technology of measuring the Kiya shatter strength, associated sample is placed on the sample table, the cylinder that is used in the sample pressurization descends gradually, and with the bottom surface of cylinder sample is exerted pressure.Increase the pressure be applied to sample, follow the tracks of the sample withstand voltage simultaneously and the record of sample applied pressure weight.When sample is crushed, the sample of crushing is in not and cylinder bottom surface state of contact, making withstand voltage is zero.At this moment put on sample pressure weight indication be the hardness of sample.Use commercially available Kiya hardness-testing device easily to measure.In the present invention, the intensity of pressed active carbon is expressed as the Kiya shatter strength of the granulation gac that is formed as diameter 2.5mm, length 4mm.This intensity is 1kg or higher, is preferably 3kg to 15kg.
In order to prevent that gac temperature when the adsorption gasoline steam from raising; And be suppressed at be adsorbed on petrol fumes on the gac purge after the gac temperature descend, pressed active carbon of the present invention preferably has 0.4J/Kcc or higher, more preferably 0.5J/Kcc or higher specific heat (25 ℃).If specific heat is too low, then can not obtain absorption and desorption effect.In general, hold the specific heat of material, be limited to about 0.8 on the aforementioned specific heat based on used solid.
If above-mentioned gac is as the sorbent material of hay tank, it can use with various configurations.For example, the gac that is shaped to intended size can be used, or the gac of crushing can be after according to given mesh size screening, used.
In addition, if fill the hay tank that is used for automobile with gac of the present invention, then the mean particle size through the gac of moulding is preferably 0.5 to 5mm, just preferred 2 to 3mm.In addition, the length of this pressed active carbon is about 0.5 to 10mm, and preferred about 3 to 5mm.If mean particle size is too little, then anti-air permeability increases, and on the other hand, if mean particle size is too big, then the tamped density of gac reduces, and causes degradation.Because gac of the present invention has above-mentioned character; Therefore; When the tamped density of gac was 0.6 to 0.8g/cc, this gac had the absorption and the ability of desorb evaporated fuel (for example gasoline), was about 0.009 to 0.012g during wherein the described hereinafter DBL of spillage (secondary) tests.Therefore, preferably, this gac can be used as sorbent material in the device (hay tank) of collecting evaporated fuel.
Embodiment
With reference to embodiment and Comparative Examples the present invention is described below.
[embodiment 1]
(fluorine content: 8 weight %) apply gac, the ratio of gac and solvent is 100: 10 with fluorated solvent.Temperature at 150 ℃ in atmosphere is carried out drying treatment to gains.
[embodiment 2]
At the fluorine and the N that contain 10%
2The air-flow of high-temperature fluorination gas under, gac remained on 200 ℃ temperature.
[Comparative Examples 1]
Former state is used undressed gac.
[embodiment 3]
(fluorine content: 8 weight %) apply gac, the ratio of gac and solvent is 100: 50 with fluorated solvent.Temperature at 70 ℃ in atmosphere is carried out drying treatment to gains.
[embodiment 4]
Hydrophilic solvent Immesion active carbon with phosphorous acid esters.
[Comparative Examples 2]
With the lipophilic solvent Immesion active carbon that contains light oil.
Fig. 1 has shown the relation before butane concentration and the equilibrium adsorption capacity.Confirm the thermo-isopleth of butane absorption according to this figure.The result of Fig. 1 shows, compares with 2 with Comparative Examples 1, and the embodiment of the invention 1,3 and 4 gac are excellent to the adsorptivity of butane in high density.
Fig. 2 has shown the relation before relative humidity and the equilibrium adsorption capacity.Confirm water absorbability according to this figure.
Table 1 has shown the result of BWC test.Table 1 result displayed has shown according to BWC (ASTM D-5228) adsorptive capacity that method of testing obtained, residual quantity and normal butane working capacity (BWC: desorption quantity).Used unit is g/100ml among this figure.Can find out that by table 1 result displayed the embodiment of the invention 1,2,3 and 4 the butane residual quantity that obtains all are 1.2g/100ml or lower.Therefore, the gac that can find out embodiment 1,2,3 and 4 has excellent especially desorb character.
Table 1
| Adsorptive capacity | Residual quantity | BWC (desorption quantity) | |
| Embodiment 1 | 15.02 | 0.96 | 14.06 |
| Embodiment 2 | 14.58 | 1.08 | 13.50 |
| Comparative Examples 1 | 17.01 | 3.08 | 13.92 |
| Embodiment 3 | 10.60 | 0.52 | 10.07 |
| Embodiment 4 | 13.30 | 0.50 | 12.80 |
| Comparative Examples 2 | 15.95 | 2.00 | 13.95 |
The above results has shown following situation.In each embodiment, the adsorptive capacity of butane is little under the lower concentration, and this shows the butane absorption that high density has taken place again.In these embodiment, shown similar result through gac hydrophobic or that oleophobic is handled.In addition, according to finding out, obtained to have gac par BWC (desorption quantity), that the butane residual quantity is little to the evaluation and test of butane absorption and desorb.In Comparative Examples 1,, therefore before with high density absorption butane, adsorbed butane with lower concentration because gac is lipophilic.
When using gac of the present invention, to compare with conventional gac, adsorptive capacity and desorption quantity do not reduce, and can reduce the residual quantity of hydrocarbon (HC), and can for example not damage the intensity of gac.Like this, use this gac to improve the adsorptive capacity and the desorption quantity of hydrocarbon (HC), and have excellent wearing quality as the hay tank of sorbent material.Therefore, this hay tank has suppressed appropriate hydrocarbon gas (for example gasoline) the entering atmosphere of evaporation.
Claims (3)
1. hay tank; It comprises gac as sorbent material; Said gac is handled through fluorated solvent and/or fluorinated gas, or floods with the hydrophilic solvent of phosphorous acid esters, and this gac has property: according to the ASTM D-5228 method of testing of test butane working capacity BWC; Make butane absorption and from it after the desorb above that, the residual quantity of butane is 1.2g/100ml or littler.
2. according to the hay tank of claim 1, wherein said gac has property: according to the ASTM D-5228 method of testing of test butane working capacity BWC, butane working capacity BWC is 14g/100ml or higher.
3. according to the hay tank of claim 1 or 2, wherein use gac as sorbent material in the part near atmospheric air port of this hay tank at least.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006001699 | 2006-01-06 | ||
| JP001699/2006 | 2006-01-06 | ||
| PCT/JP2007/050001 WO2007077985A1 (en) | 2006-01-06 | 2007-01-04 | Activated carbon and canister using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101365652A CN101365652A (en) | 2009-02-11 |
| CN101365652B true CN101365652B (en) | 2012-06-13 |
Family
ID=38228321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800019595A Expired - Fee Related CN101365652B (en) | 2006-01-06 | 2007-01-04 | Activated carbon and canister using the same |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7967899B2 (en) |
| JP (1) | JP4880619B2 (en) |
| CN (1) | CN101365652B (en) |
| WO (1) | WO2007077985A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009011287A1 (en) * | 2007-07-13 | 2009-01-22 | Cataler Corporation | Adsorbent material, and canister |
| US8118009B2 (en) * | 2007-12-12 | 2012-02-21 | Ford Global Technologies, Llc | On-board fuel vapor separation for multi-fuel vehicle |
| JP5583609B2 (en) * | 2011-01-21 | 2014-09-03 | 愛三工業株式会社 | Canister |
| CN103962100A (en) * | 2013-02-04 | 2014-08-06 | 济南圣泉集团股份有限公司 | Adsorption material and preparation method thereof |
| JP6863732B2 (en) * | 2016-12-26 | 2021-04-21 | 株式会社マーレ フィルターシステムズ | Honeycomb adsorbent and its manufacturing method and canister |
| CA3086016A1 (en) * | 2017-12-27 | 2019-07-04 | Kuraray Co., Ltd. | Activated carbon molded article |
| WO2019208600A1 (en) * | 2018-04-24 | 2019-10-31 | 大阪ガスケミカル株式会社 | Adsorbent, canister and method for producing adsorbent |
| TWI749718B (en) * | 2019-08-21 | 2021-12-11 | 日商日本製紙股份有限公司 | Adsorbent for canisters |
| CN112604446A (en) * | 2020-11-10 | 2021-04-06 | 江西爱科道环境科技发展有限公司 | High-concentration organic waste gas treatment system and treatment method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304788A (en) * | 2000-12-13 | 2001-07-25 | 中国科学院山西煤炭化学研究所 | Activated carbon with high specific surface area |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1460240A (en) * | 1974-11-12 | 1976-12-31 | Exxon Research Engineering Co | Lewis acid-fluorine compounds of carbon |
| US5206207A (en) * | 1992-03-18 | 1993-04-27 | Westvaco Corporation | Preparation for high activity high density carbon |
| US5227552A (en) * | 1992-04-27 | 1993-07-13 | Mobil Oil Corporation | Process for hydrogenating alkenes in the presence of alkanes and a heterogeneous catalyst |
| JP3562551B2 (en) | 1997-05-21 | 2004-09-08 | 千代田化工建設株式会社 | Activated carbon catalyst and flue gas desulfurization method |
| JP2000313611A (en) * | 1999-04-26 | 2000-11-14 | Mitsubishi Chemicals Corp | Active carbon and its production |
| US6696384B2 (en) * | 2001-04-11 | 2004-02-24 | Meadwestvaco Corporation | Method of making shaped activated carbon |
| JP2005035812A (en) | 2003-07-16 | 2005-02-10 | Cataler Corp | Active carbon and canister |
| WO2008027938A1 (en) * | 2006-09-01 | 2008-03-06 | Meadwestvaco Corporation | Selective heating in adsorbent systems |
-
2007
- 2007-01-04 JP JP2007552999A patent/JP4880619B2/en not_active Expired - Fee Related
- 2007-01-04 US US12/084,790 patent/US7967899B2/en not_active Expired - Fee Related
- 2007-01-04 WO PCT/JP2007/050001 patent/WO2007077985A1/en active Application Filing
- 2007-01-04 CN CN2007800019595A patent/CN101365652B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1304788A (en) * | 2000-12-13 | 2001-07-25 | 中国科学院山西煤炭化学研究所 | Activated carbon with high specific surface area |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2000-313611A 2000.11.14 |
| JP特开2005-35812A 2005.02.10 |
| JP特开平10-314588A 1998.12.02 |
Also Published As
| Publication number | Publication date |
|---|---|
| US7967899B2 (en) | 2011-06-28 |
| JPWO2007077985A1 (en) | 2009-06-11 |
| CN101365652A (en) | 2009-02-11 |
| JP4880619B2 (en) | 2012-02-22 |
| WO2007077985A1 (en) | 2007-07-12 |
| US20090139407A1 (en) | 2009-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101365652B (en) | Activated carbon and canister using the same | |
| US8864877B2 (en) | Method for reducing evaporated fuel emission, canister and adsorbent therefor | |
| Durán et al. | Biogas purification by means of adsorption on pine sawdust-based activated carbon: Impact of water vapor | |
| US8759253B2 (en) | Chemically activated carbon and methods for preparing same | |
| JP4494786B2 (en) | Method for reducing emissions from an evaporative emission control system | |
| JP5240791B2 (en) | Adsorbent and method for producing the same, canister and method for using the same | |
| US20070078056A1 (en) | Pelletized activated carbon, method for producing pelletized activated carbon, and canister | |
| Vieillard et al. | Cocoa shell-deriving hydrochar modified through aminosilane grafting and cobalt particle dispersion as potential carbon dioxide adsorbent | |
| US8361207B2 (en) | Adsorbent and canister | |
| US8137443B2 (en) | Activated carbon and canister and intake air filter utilizing the same | |
| JP4610273B2 (en) | Honeycomb structure, manufacturing method thereof, and canister using honeycomb structure | |
| KR20200052328A (en) | Low emission, high action capacity adsorbent and canister system | |
| US20020028333A1 (en) | Spherical high-performance adsorbents with microstructure | |
| CN110918063B (en) | Preparation process of environment-friendly adsorption material and adsorption testing system | |
| Nuraisyah et al. | Soil with high porosity as an excellent carbon dioxide adsorbent carbon-rich soil as an effective adsorbent for carbon dioxide | |
| CN1095688C (en) | Densified carbon black adsorbent and method for adsorption of gas by using the adsorbent | |
| JP2006248890A (en) | Activated carbon structure and its manufacturing method | |
| Mohammed et al. | Preparation of activated carbon from fuel oil wastes for removal of ortho-xylene from aqueous solution by new circulating system | |
| Robinson et al. | Development of Carbon Adsorption Blocks for Evaporative Loss Control | |
| JPWO2005005041A1 (en) | Hydrogen gas adsorbent and method for storing hydrogen gas using the adsorbent | |
| Reimerink et al. | New developments of activated carbons for evaporative loss control devices (ELCD) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20140104 |